Siemens MOBILETT Plus HP Service Manual

MOBILETT Plus HP SPR8-220.061.03 Page 2 of 10 Siemens AG
Rev. 03 09.03 CS PS 24 Medical Solutions
9 - 2 Replacement and repairs on the collimator
Checking the light intensity 9
When a collimator lamp is used to define the X-ray field, it shall provide an average illumi-
nation of no less than 180 lux at 100 centimeters. The average illumination shall be based
upon measurements made in the approximate center of each quadrant of the light field
(Fig. 4).
If the illumination is less than 180 lux, check the lamp supply. Refer to wiring diagram
X037E, page 180.
Fig. 4 Fig. 5
Fig. 6
Equipment required: Lux meter
If the MOBILETT is equipped with a DAP measuring system,
remove the DAP ionization chamber first.
I
Light field
= 1/4 [I
1
+ I
2
+ I
3
+ I
4
) - 4I
Room light
]
I
1
I
2
I
3
I
4
Markings
A + C ≤ 1.7 %
SID
B + D
≤ 1.7 %
SID
SID = Source-Image Distance
----------- Light field
_______ X-ray field
NOTE

Siemens MOBILETT Plus HP Specifications

General

Brand	Siemens
Model	MOBILETT Plus HP
Category	Medical Equipment
Language	English